Plant Technician Supervisor

City of San Diego, CA

$91K — $109K *
Energy & Utilities
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • 5-7 years experience in mechanical equipment maintenance in water/wastewater industries
  • Experience leading personnel in technical roles
  • Valid California Class C Driver License required
  • Familiarity with high pressure hydraulic systems, pumps, and chemical feed equipment
  • Experience with advanced machinery such as boilers and hydraulic systems
  • CWEA Certification (Grade IV) highly desirable
  • Proficient in Microsoft Office and CMMS systems

Responsibilities

  • Supervise and assign tasks to a technical crew
  • Perform maintenance and repair on water treatment machinery
  • Ensure compliance with safety regulations and standards
  • Oversee contractor work and manage external resources
  • Conduct training and performance evaluations for staff
  • Install and align heavy motors and equipment
  • Assist with on-call duties and emergency maintenance

Benefits

  • Automatic enrollment in the San Diego City Employees Retirement System for eligible employees
  • Opportunity for overtime pay
  • Potential for additional on-call compensation
  • Work in diverse environments such as water treatment facilities
  • Access to continuous training and certification options
  • Supportive of employee health and safety with rigorous safety standards
Full Job Description
Salary : $91,665.60 - $109,304.00 Annually
Location : City of San Diego, CA
Job Type: Varies by Position
Job Number:
Business Area: 2000 - Public Utilities
Opening Date: 06/12/2026
Closing Date: 6/22/2026 11:59 PM Pacific

JOB INFORMATION

Plant Technician Supervisor positions plan, assign, supervise, and participate in the work of an assigned crew engaged in the maintenance, overhaul, repair, and installation of water/wastewater/potable reuse treatment plant and pump station machinery and equipment, including: Air compressors, high pressure hydraulic systems, pumps and piping systems, chemical feed equipment (e.g., liquid chlorine evaporators, gaseous chlorinators), boilers, heat exchangers, and diesel and gasoline-powered engines; install and align heavy motors and equipment; supervise staff; enforce safety regulations; oversee the work of contractors; rate, train, and evaluate the work of subordinates; and perform other duties as assigned.

NOTES:
  • Eligible benefitted employees originally hired on or after July 10, 2021, will be automatically enrolled in the San Diego City Employees Retirement System (SDCERS).
  • Plant Technician Supervisor employees will be required to obtain and maintain confined space entry certification within six months from date of hire.
  • Plant Technician Supervisor employees must remain clean shaven and be able to pass a respirator fit-test for entry into confined spaces and chlorine environments.
  • Plant Technician Supervisor employees may be required to work overtime including weekends, evenings and holidays.
  • Plant Technician Supervisor employees may be required to work on an on-call basis for which they may receive 5% additional pay.
  • Plant Technician Supervisor positions involve exposure to noxious chemicals and other hazardous substances.
  • Plant Technician Supervisor positions may also require work in a treated sewage, raw sewage or chlorine environment, in high places, tanks, silos, basin tanks, channels, and confined spaces.

MINIMUM REQUIREMENTS

You must meet the following requirements on the date you apply, unless otherwise indicated.

EXPERIENCE: You must meet ONE of the following options:
  1. One year of full-time experience as a Plant Technician III with the City of San Diego.
  2. Four years of full-time experience maintaining, overhauling, repairing, and installing mechanical equipment at a water treatment facility, wastewater facility, major pump station, or industrial processing facility employing similar technology, of which one year MUST have been in a lead position at a level equivalent to a Plant Technician III with the City of San Diego (a position that performs difficult maintenance, overhaul, repair and installation work on a wide variety of complex water and sewage mechanical equipment and leads a crew in the repair and maintenance of such equipment). Qualifying experience MUST include working on the following mechanical equipment:
  • Pumps
  • Valves
  • Piping systems
  • Compressors
  • Gear drive units/speed reducers
  • Chemical feeders
  • Blowers
NOTES:
  • Preventive maintenance work only (e.g., changing oil, lubing, or removing and replacing parts) is NOT qualifying.
  • City of San Diego employees using Out-of-Class Assignment (OCA) experience to qualify must submit written documentation signed by their appointing authority or payroll specialist, detailing the work performed, dates, and total number of qualifying OCA hours. OCA experience without the required documentation will NOT be considered.
LICENSE:A valid California Class C Driver License is required at the time of hire.

HIGHLY DESIRABLE:
  • Possession of a valid California Water Environment Association (CWEA) Plant Maintenance, Mechanical, and/or Electrical Technology Grade IV Certification.
  • Experience with Microsoft Office, Excel, Word, and written communications.
  • Experience working with a Computerized Maintenance Management System.
REQUIRED DOCUMENTS (MUST SUBMIT WITH APPLICATION):
  • For City of San Diego employees, proof of Out-of-Class Assignment (OCA), if utilized to meet the minimum requirements.
Required documents should be attached electronically to your application. If you are unable to attach at the time of application submittal, you must submit them as soon as possible via fax: (619) 533-3337; or to the Employment Information Center: City of San Diego Personnel Department, 1200 Third Avenue - Suite 300, San Diego, CA 92101. Include your name and the title of the position for which you are applying.
SCREENING PROCESS

Please ensure all information is complete and accurate as the responses you provide on the supplemental questions will be reviewed using an automated evaluation system. If you are successful in this initial screening process, your application will be reviewed for applicable education, experience, and/or training to ensure all minimum requirements have been met. Successful candidates will be placed on a list which will be used to fill position vacancies during the next six months (180 days). For each vacancy, only those candidates with the most appropriate qualifications will be contacted by the hiring department for an interview.
SUPPLEMENTAL INFORMATION

PRE-EMPLOYMENT REQUIREMENTS: Employment offers are conditional pending the results of all screening processes applicable to this position, which may include the following: confirmation of citizenship or legal right to work in the United States; completion of a pre-employment medical review and exam (which may include drug and alcohol testing); reference checks; and fingerprinting. Fingerprints will be submitted to the Federal Bureau of Investigation and the California Department of Justice for a conviction record report. Certain positions may require additional screening processes, which may include a polygraph examination and/or background investigation. All of these processes must be successfully completed before employment begins. A positive test for alcohol, cannabis/marijuana, illegal drugs, or inadequately explained prescription drugs, or misrepresentation, falsification, or omission of pertinent facts in any step of the screening or selection process, may be cause for disqualification or termination of employment. Nothing in this job posting constitutes an express or implied contract for employment with the City of San Diego. Candidates must notify the Personnel Department of any change in their name, mailing address, email address, or phone number, otherwise they may miss employment opportunities.

Rev. 3 - June 12, 2026 (New Recruitment Date)
01

I understand that failure to respond to the following questions in the spaces provided may result in the rejection of my application. In addition, I may miss out on employment opportunities. Resumes are NOT reviewed for assessing the minimum requirements, qualifications will be determined from the answers provided to the supplemental questions.
  • Yes
  • No

02

Are you a current or former City of San Diego government/municipal employee?
  • Current city employee
  • Former city employee
  • Current & former city employee
  • None of the above

03

If you have previously worked or are currently working for the City of San Diego, please enter your PERNR.
04

The minimum age for this job is 18, unless you are 17 and a high school graduate. Do you meet the minimum age requirements for this job?
  • Yes
  • No

05

How many years of full-time experience do you have as a Plant Technician III with the City of San Diego?
  • None
  • Less than 1 year
  • 1 year to less than 2 years
  • 2 years to less than 3 years
  • 3 years to less than 4 years
  • 4 years to less than 5 years
  • 5 years or more

06

How many years of full-time experience do you have maintaining, overhauling, repairing, and installing mechanical equipment at a water treatment facility, wastewater facility, potable reuse treatment plant, major pump station, or industrial processing facility employing similar technology?
  • None
  • Less than 1 year
  • 1 year to less than 2 years
  • 2 years to less than 3 years
  • 3 years to less than 4 years
  • 4 years to less than 5 years
  • 5 years or more

07

In which of the following areas do you have full-time experience with mechanical equipment at a water treatment facility, wastewater facility, potable reuse treatment plant, major pump station, or industrial processing facility employing similar technology?
  • Maintenance
  • Overhaul
  • Repair
  • Installation
  • None of the above

08

Describe your full-time experience with mechanical equipment at a water treatment facility, wastewater facility, potable reuse treatment plant, major pump station, or industrial processing facility employing similar technology in the following areas: a. Maintenance; b. overhaul; c. repair; d. installation. For each area, specify from which employer the experience was gained, your title, level of responsibility, percent of time spent on each area and the total length of your experience. If you do not have any experience in a specific area, write "None."
09

In which of the following areas do you have full-time experience maintaining, overhauling, repairing, and installing mechanical equipment at a water treatment facility, wastewater facility, potable reuse treatment plant, major pump station, or industrial processing facility employing similar technology?
  • Pumps
  • Valves
  • Piping systems
  • Compressors
  • Gear drive units/speed reducers
  • Chemical feeders
  • Blowers
  • None of the above

10

Describe your full-time experience maintaining, overhauling, repairing, and installing mechanical equipment at a water treatment facility, wastewater facility, potable reuse treatment plant, major pump station, or industrial processing facility employing similar technology in the following areas: a. Pumps; b. valves; c. piping systems; d. compressors; e. gear drive units/speed reducers; f. chemical feeders; g. blowers. For each area, specify from which employer the experience was gained, your title, level of responsibility, percent of time spent on each area and the total length of your experience. If you do not have any experience in a specific area, write "None."
11

How many years of full-time experience do you have in a LEAD position at a level equivalent to a Plant Technician III with the City of San Diego (a position that performs difficult maintenance, overhaul, repair and installation work on a wide variety of complex water and sewage mechanical equipment and LEADS a crew in the repair and maintenance of such equipment)?
  • None
  • Less than 1 year
  • 1 year to less than 2 years
  • 2 years to less than 3 years
  • 3 years to less than 4 years
  • 4 years to less than 5 years
  • 5 years or more

12

Describe your full-time experience in a LEAD position at a level equivalent to a Plant Technician III with the City of San Diego (a position that performs difficult maintenance, overhaul, repair and installation work on a wide variety of complex water and sewage mechanical equipment and LEADS a crew in the repair and maintenance of such equipment). Specify from which employer the experience was gained, your title, level of responsibility, percent of time spent on each area and the total length of your experience. If you do not have any experience in a specific area, write "None."
Required Question

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